发明名称 |
Preparation of single crystal superalloys for post-casting heat treatment |
摘要 |
Unwanted recrystallization during heat treatment of a directionally solidified nickel alloy single crystal casting is prevented by chemical milling the part before heat treatment. Removal of a layer of as little as 0.013-0.050 mm thick, less than two percent of the part thickness, has been found effective.
|
申请公布号 |
US5413648(A) |
申请公布日期 |
1995.05.09 |
申请号 |
US19830565999 |
申请日期 |
1983.12.27 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
SALKELD, RICHARD W.;FIELD, THOMAS T.;AULT, EARLE A. |
分类号 |
C22F1/10;C30B11/00;(IPC1-7):C21D6/02 |
主分类号 |
C22F1/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|